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  <a name="EN-US_TOPIC_0000001792346046"></a><a name="EN-US_TOPIC_0000001792346046"></a>
  <h1 class="topictitle1">Performing Periodic Backup</h1>
  <div>
   <p>The instance to be protected needs to be associated with a specified SLA. The system periodically performs backup based on the SLA.</p>
   <div class="section" id="EN-US_TOPIC_0000001792346046__section4409450161315">
    <h4 class="sectiontitle">Prerequisites</h4>
    <ul id="EN-US_TOPIC_0000001792346046__ul1696571551317">
     <li id="EN-US_TOPIC_0000001792346046__li2034121133520">Backup operations can be performed only when the database is in the normal or degraded state. Only full backup or incremental backup can be performed, if the database is in the degraded state.</li>
     <li id="EN-US_TOPIC_0000001792346046__li3624153115373">After the agent host is replaced or the project information is modified, you need to scan resources again.</li>
     <li id="EN-US_TOPIC_0000001792346046__li53411598230">For OLTP OPS, before a backup is initiated, ensure that the default backup root path has been configured for the instance on the OLTP OPS management page.</li>
     <li id="EN-US_TOPIC_0000001792346046__li75616518302">For OLTP OPS, before a backup is initiated, ensure that monitoring has been enabled for instances managed by OLTP OPS.</li>
     <li id="EN-US_TOPIC_0000001792346046__li447154971420">Before a backup is performed, you need to start backUpAgent on the agent host. For details about how to start the backUpAgent, see "Starting backUpAgent" in the <em id="EN-US_TOPIC_0000001792346046__i18304439153419">ProtectAgent Installation Guide</em>.</li>
     <li id="EN-US_TOPIC_0000001792346046__li122821411717">Before a backup is initiated, ensure that the XBSA backup whitelist has been enabled on TPOPS. For details about how to enable the whitelist, see <a href="en-us_topic_0000001839145089.html">Step 1: Enabling the XBSA Backup Whitelist on the TPOPS Node</a>.</li>
    </ul>
   </div>
   <div class="section" id="EN-US_TOPIC_0000001792346046__section4532814192015">
    <h4 class="sectiontitle">Precautions</h4>
    <p id="EN-US_TOPIC_0000001792346046__p18932191911200">For version 1.5.0, there is a hole area where data files are not retained between the log backup and the next data backup.</p>
   </div>
   <div class="section">
    <h4 class="sectiontitle">Procedure</h4>
    <ol>
     <li><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000001792346046__en-us_topic_0000001839225093_en-us_topic_0000001839142377_uicontrol932712545121"><b><span id="EN-US_TOPIC_0000001792346046__en-us_topic_0000001839225093_en-us_topic_0000001839142377_text49391010171710"><strong>Protection</strong></span> &gt; Databases &gt; GaussDB</b></span>.</span><p></p>
      <div class="note" id="EN-US_TOPIC_0000001792346046__en-us_topic_0000001839225093_en-us_topic_0000001839142377_note62461853660">
       <img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span>
       <div class="notebody">
        <p id="EN-US_TOPIC_0000001792346046__en-us_topic_0000001839225093_en-us_topic_0000001839142377_p141794599612">For 1.5.0, choose <span class="uicontrol" id="EN-US_TOPIC_0000001792346046__en-us_topic_0000001839225093_en-us_topic_0000001839142377_uicontrol1294410117713"><b><span id="EN-US_TOPIC_0000001792346046__en-us_topic_0000001839225093_en-us_topic_0000001839142377_text1894431114714"><strong>Protection</strong></span> &gt; Cloud Platforms &gt; GaussDB</b></span>.</p>
       </div>
      </div> <p></p></li>
     <li id="EN-US_TOPIC_0000001792346046__li0912337339"><span>Click the <span id="EN-US_TOPIC_0000001792346046__text1245710348415"><strong>Instance</strong></span> tab.</span></li>
     <li><span>In the row that contains the target instance, choose <span class="menucascade"><b><span class="uicontrol"><span><strong>More</strong></span></span></b> &gt; <b><span class="uicontrol"><span><strong>Protect</strong></span></span></b></span>.</span><p></p><p>You can select multiple databases.</p> <p></p></li>
     <li><span>Select an SLA.</span><p></p><p>You can also click <span class="uicontrol"><b><span><strong>Create</strong></span></b></span> to create an SLA.</p> <p></p></li>
     <li><span>Click <span class="uicontrol" id="EN-US_TOPIC_0000001792346046__en-us_topic_0000001607841256_uicontrol196538515235"><b>OK</b></span>. </span><p></p><p id="EN-US_TOPIC_0000001792346046__en-us_topic_0000001607841256_p25041111535">If the current system time is later than the first backup start time of the SLA, you can select to perform backup immediately after the backup SLA is associated or wait for the next scheduling based on the backup policy set in the SLA.</p> <p></p></li>
    </ol>
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    <div class="parentlink">
     <strong>Parent topic:</strong> <a href="en-us_topic_0000001839145169.html">Step 7: Performing Backup</a>
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